NWA50AX PRO 160mhz

rossano
rossano Posts: 10  Freshman Member
First Comment
edited September 18 in Nebula

Hi, I have a NWA50AX PRO. It's working fine but I have to set 160mhz bandwidth every time it reboots. I have set the override in the radio setting and the settings doesn't change. I have to change channel and the 160mhz bandwidth. Is this a Nebula bug?

Edit

Rebooting fixes the channel width, but after some time the channel width is back to 80MHz

Screenshot 2024-09-15 175112.png

Best Answers

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    Answer ✓

    Hi @rossano,

    After checking, your AP didn't keep in 160 MHz because the AP detects radar. Once radar is detected, the AP must change to 80MHz to avoid radar channel because the original service channel can’t be used per regulatory requirements.

    If there are often radar signals in the environment, switching to another channel and using it at 160MHz will not be implemented forever, because the radar channel will still be covered. AP will switch to a non-DFS channel and remain there for 30 minutes.

    If no radar is detected within that timeframe, the AP will resume using the DFS channel and potentially return to 160MHz bandwidth. However, if radar is still detected after 30 minutes, the AP will stay on the non-DFS channel, with the maximum channel width is 80 MHz.

    For more information, please reference this FAQ:

    How does a Zyxel AP behave when encountering radar? — Zyxel Community

    Zyxel Melen


  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    edited October 22 Answer ✓

    Hi @rossano,

    Apologize for the delay.

     Maybe is because the 160 MHz is so wide that goes in a DFS channel?

    Yes, that is the reason. Please reference the screenshot below to find the related channels for each channelwidth.

    image.png

    Zyxel Melen


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All Replies

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @rossano,

    I have tested it in my lab with the latest firmware version, but the channel and channel width aren't changed after reboot.

    May I know your firmware version and have your organization's privilege to check this issue? Please reference the FAQ below to enable the privilege.

    https://community.zyxel.com/en/discussion/14234/nebula-how-to-turn-on-zyxel-support-access

    Zyxel Melen


  • rossano
    rossano Posts: 10  Freshman Member
    First Comment

    I just enabled the Support Access. The setting of 160 MHz remain the same. But the real radio signal is 80 MHz. I think that the settings change even when the auto DCS scans for the best channel.

  • rossano
    rossano Posts: 10  Freshman Member
    First Comment
    edited September 18
    Screenshot_2024-09-18-21-30-34-61_d87d7ad74515ad560cec8d55b42cc818.jpg_compressed.JPEG

    This is now without reboot. The channel width is now 80MHz.

    Rebooting fixes the channel width, but after some time the channel width is back to 80MHz.

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @rossano,

    I checked the current channel and channel bandwidth with the command "show wireless-hal current channel" and got this result.

    image.png

    It seems like the channel bandwidth doesn't change. Could you help by using the command to check the channel bandwidth when you find it has changed to 80 MHz? Thanks for the help.

    Zyxel Melen


  • rossano
    rossano Posts: 10  Freshman Member
    First Comment

    I can't use the terminal, in the local interface is not available. But when I open the web interface I can see the current channel information. I will check when the channel is 80 MHz instead of 160 MHz.

    Screenshot 2024-09-19 155221.png

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @rossano,

    If possible, please also collect the diagnostic inform for us to investigate when it occurs.

    Zyxel Melen


  • rossano
    rossano Posts: 10  Freshman Member
    First Comment

    I will, but how to delete the personal information from the diagnostic?

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,567  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @rossano,

    You may send it to me in a private message.

    Zyxel Melen


  • rossano
    rossano Posts: 10  Freshman Member
    First Comment

    Thank you, when the problem will show I will inform you. The strange thing is that since I opened the discussion the problem is not showing up.

  • rossano
    rossano Posts: 10  Freshman Member
    First Comment
    Screenshot 2024-09-24 224854.png

    Just happened. The Access point is doing DFS even when it's locked on the channel 48. I am sending you the diagnostic.

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